Views: 0 Author: YILE Publish Time: 2025-07-16 Origin: https://www.yilemachinery.com/
In mining excavators, the track guide frame (commonly known as the track support frame or track guide frame) is an important component of the track walking system, mainly applied in large mining hydraulic excavators, crawler mobile crushing stations and other equipment. Its application and function are as follows:
Track retaining device Track retaining device Track retaining device
Large-scale mining excavators: Such as the super-large hydraulic excavators from brands like Caterpillar and Komatsu, which are used for mining operations such as extracting ores or earth in open-pit mines, they need to withstand heavy loads and complex terrains.
Track-type mobile equipment: such as mobile crushers and stacker-reclaimers used in mines, need to move for long periods of time in uneven mining sites.
(1) Track Guidance and Positioning
The track retaining frame constrains the movement trajectory of the track link sections through the guide grooves on both sides or rollers, preventing the track from lateral deviation or derailment during operation. This is particularly crucial when operating on slopes or making turns.
(2) Distributed Load and Shock Absorption
In heavy-duty operations, the bearings work in conjunction with the track support wheels and the supporting sprockets to evenly distribute the weight of the excavator onto the track plates, reducing the pressure on the ground and buffering ground impacts to protect the chassis structure.
(3) Enhance stability
The mining terrain is mostly composed of gravel and has steep slopes. The support frame moves on stable tracks to prevent the equipment from losing control due to bumps or tilting, thereby enhancing operational safety.
(4) Extend the service life of the tracks
Reduce abnormal friction between the tracks and the sprockets, as well as the supporting wheels, avoiding wear caused by misalignment and lowering maintenance costs.
High-strength materials: Usually made of alloy steel or wear-resistant steel to withstand the impact and wear caused by harsh working conditions in mines.
Modular design: Facilitates replacement of damaged components and reduces downtime.
Lubrication design: Some cage assemblies are integrated with lubrication channels, reducing heat generation due to friction.
Resistance to wear: Hard substances such as slag and rocks can easily cause wear. Regular inspections are necessary to monitor the wear condition of the retaining rings.
Dust-proof sealing: Prevents dust from entering the crawler joint, which could affect the guiding function.
Corrosion resistance: Requires rust prevention treatment in humid or chemically corrosive environments.
Therefore, the track maintainer in mining excavators acts as the "track guardian", precisely guiding, distributing loads and enhancing stability, ensuring the efficient operation of the equipment under extreme conditions while reducing maintenance costs. Its design must take into account strength, wear resistance and ease of maintenance to meet the high-intensity operation requirements of mines.
